Zinc isotopes in Late Pleistocene fossil teeth from a Southeast Asian cave setting preserve paleodietary information
Stable carbon and nitrogen isotope ratios of collagen from bone and dentin have frequently been used for dietary reconstruction, but this method is limited by protein preservation. Isotopes of the trace element zinc (Zn) in bioapatite constitute a promising proxy to infer dietary information from ex...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 2020-03, Vol.117 (9), p.4675-4681 |
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| creator | Bourgon, Nicolas Jaouen, Klervia Bacon, Anne-Marie Jochum, KlausPeter Dufour, Elise Duringer, Philippe Ponche, Jean-Luc Joannes-Boyau, Renaud Boesch, Quentin Antoine, Pierre-Olivier Hullot, Manon Weis, Ulrike Schulz-Kornas, Ellen Trost, Manuel Fiorillo, Denis Demeter, Fabrice Patole-Edoumba, Elise Shackelford, Laura L. Dunn, Tyler E. Zachwieja, Alexandra Duangthongchit, Somoh Sayavonkhamdy, Thongsa Sichanthongtip, Phonephanh Sihanam, Daovee Souksavatdy, Viengkeo Hublin, Jean-Jacques Tütken, Thomas |
| description | Stable carbon and nitrogen isotope ratios of collagen from bone and dentin have frequently been used for dietary reconstruction, but this method is limited by protein preservation. Isotopes of the trace element zinc (Zn) in bioapatite constitute a promising proxy to infer dietary information from extant and extinct vertebrates. The 66Zn/64Zn ratio (expressed as δ66Zn value) shows an enrichment of the heavy isotope in mammals along each trophic step. However, preservation of diet-related δ66Zn values in fossil teeth has not been assessed yet. Here, we analyzed enamel of fossil teeth from the Late Pleistocene (38.4–13.5 ka) mammalian assemblage of the Tam Hay Marklot (THM) cave in northeastern Laos, to reconstruct the food web and assess the preservation of original δ66Zn values. Distinct enamel δ66Zn values of the fossil taxa (δ66Zncarnivore < δ66Znomnivore < δ66Znherbivore) according to their expected feeding habits were observed, with a trophic carnivore-herbivore spacing of +0.60‰ and omnivores having intermediate values. Zn and trace element concentration profiles similar to those of modern teeth also indicate minimal impact of diagenesis on the enamel. While further work is needed to explore preservation for settings with different taphonomic conditions, the diet-related δ66Zn values in fossil enamel from THM cave suggest an excellent long-term preservation potential, even under tropical conditions that are well known to be adverse for collagen preservation. Zinc isotopes could thus provide a new tool to assess the diet of fossil hominins and associated fauna, as well as trophic relationships in past food webs. |
| doi_str_mv | 10.1073/pnas.1911744117 |
| format | Article |
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Isotopes of the trace element zinc (Zn) in bioapatite constitute a promising proxy to infer dietary information from extant and extinct vertebrates. The 66Zn/64Zn ratio (expressed as δ66Zn value) shows an enrichment of the heavy isotope in mammals along each trophic step. However, preservation of diet-related δ66Zn values in fossil teeth has not been assessed yet. Here, we analyzed enamel of fossil teeth from the Late Pleistocene (38.4–13.5 ka) mammalian assemblage of the Tam Hay Marklot (THM) cave in northeastern Laos, to reconstruct the food web and assess the preservation of original δ66Zn values. Distinct enamel δ66Zn values of the fossil taxa (δ66Zncarnivore < δ66Znomnivore < δ66Znherbivore) according to their expected feeding habits were observed, with a trophic carnivore-herbivore spacing of +0.60‰ and omnivores having intermediate values. Zn and trace element concentration profiles similar to those of modern teeth also indicate minimal impact of diagenesis on the enamel. While further work is needed to explore preservation for settings with different taphonomic conditions, the diet-related δ66Zn values in fossil enamel from THM cave suggest an excellent long-term preservation potential, even under tropical conditions that are well known to be adverse for collagen preservation. Zinc isotopes could thus provide a new tool to assess the diet of fossil hominins and associated fauna, as well as trophic relationships in past food webs.</description><identifier>ISSN: 0027-8424</identifier><identifier>EISSN: 1091-6490</identifier><identifier>DOI: 10.1073/pnas.1911744117</identifier><identifier>PMID: 32071235</identifier><language>eng</language><publisher>United States: National Academy of Sciences</publisher><subject>Biological anthropology ; Biological Sciences ; Collagen ; Dental enamel ; Dentin ; Diagenesis ; Diet ; Earth Sciences ; Enamel ; Food chains ; Food webs ; Fossils ; Humanities and Social Sciences ; Isotope ratios ; Isotopes ; Mammals ; Nitrogen isotopes ; Omnivores ; Paleontology ; Pleistocene ; Preservation ; Sciences of the Universe ; Taphonomy ; Teeth ; Trace elements ; Trophic relationships ; Vertebrates ; Zinc isotopes</subject><ispartof>Proceedings of the National Academy of Sciences - PNAS, 2020-03, Vol.117 (9), p.4675-4681</ispartof><rights>Copyright © 2020 the Author(s). Published by PNAS.</rights><rights>Copyright National Academy of Sciences Mar 3, 2020</rights><rights>Attribution - NoDerivatives</rights><rights>Copyright © 2020 the Author(s). Published by PNAS. 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c543t-a68b38525dc1c871c24a7b19388463413d81e6cda8e0ab174f1cebfdaffdd9463</citedby><cites>FETCH-LOGICAL-c543t-a68b38525dc1c871c24a7b19388463413d81e6cda8e0ab174f1cebfdaffdd9463</cites><orcidid>0000-0002-4931-0371 ; 0000-0001-9122-1818 ; 0000-0002-0452-486X ; 0000-0001-8538-1903 ; 0000-0002-1288-5534 ; 0000-0003-4481-8974 ; 0000-0003-3276-071X ; 0000-0001-8865-7055 ; 0000-0002-7196-5673 ; 0000-0003-1657-8256 ; 0000-0001-6213-5726 ; 0000-0003-2820-5035 ; 0000-0003-4147-9778 ; 0000-0002-0934-2360</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/26929161$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/26929161$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,727,780,784,803,885,27924,27925,53791,53793,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32071235$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-02978793$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Bourgon, Nicolas</creatorcontrib><creatorcontrib>Jaouen, Klervia</creatorcontrib><creatorcontrib>Bacon, Anne-Marie</creatorcontrib><creatorcontrib>Jochum, KlausPeter</creatorcontrib><creatorcontrib>Dufour, Elise</creatorcontrib><creatorcontrib>Duringer, Philippe</creatorcontrib><creatorcontrib>Ponche, Jean-Luc</creatorcontrib><creatorcontrib>Joannes-Boyau, Renaud</creatorcontrib><creatorcontrib>Boesch, Quentin</creatorcontrib><creatorcontrib>Antoine, Pierre-Olivier</creatorcontrib><creatorcontrib>Hullot, Manon</creatorcontrib><creatorcontrib>Weis, Ulrike</creatorcontrib><creatorcontrib>Schulz-Kornas, Ellen</creatorcontrib><creatorcontrib>Trost, Manuel</creatorcontrib><creatorcontrib>Fiorillo, Denis</creatorcontrib><creatorcontrib>Demeter, Fabrice</creatorcontrib><creatorcontrib>Patole-Edoumba, Elise</creatorcontrib><creatorcontrib>Shackelford, Laura L.</creatorcontrib><creatorcontrib>Dunn, Tyler E.</creatorcontrib><creatorcontrib>Zachwieja, Alexandra</creatorcontrib><creatorcontrib>Duangthongchit, Somoh</creatorcontrib><creatorcontrib>Sayavonkhamdy, Thongsa</creatorcontrib><creatorcontrib>Sichanthongtip, Phonephanh</creatorcontrib><creatorcontrib>Sihanam, Daovee</creatorcontrib><creatorcontrib>Souksavatdy, Viengkeo</creatorcontrib><creatorcontrib>Hublin, Jean-Jacques</creatorcontrib><creatorcontrib>Tütken, Thomas</creatorcontrib><title>Zinc isotopes in Late Pleistocene fossil teeth from a Southeast Asian cave setting preserve paleodietary information</title><title>Proceedings of the National Academy of Sciences - PNAS</title><addtitle>Proc Natl Acad Sci U S A</addtitle><description>Stable carbon and nitrogen isotope ratios of collagen from bone and dentin have frequently been used for dietary reconstruction, but this method is limited by protein preservation. Isotopes of the trace element zinc (Zn) in bioapatite constitute a promising proxy to infer dietary information from extant and extinct vertebrates. The 66Zn/64Zn ratio (expressed as δ66Zn value) shows an enrichment of the heavy isotope in mammals along each trophic step. However, preservation of diet-related δ66Zn values in fossil teeth has not been assessed yet. Here, we analyzed enamel of fossil teeth from the Late Pleistocene (38.4–13.5 ka) mammalian assemblage of the Tam Hay Marklot (THM) cave in northeastern Laos, to reconstruct the food web and assess the preservation of original δ66Zn values. Distinct enamel δ66Zn values of the fossil taxa (δ66Zncarnivore < δ66Znomnivore < δ66Znherbivore) according to their expected feeding habits were observed, with a trophic carnivore-herbivore spacing of +0.60‰ and omnivores having intermediate values. Zn and trace element concentration profiles similar to those of modern teeth also indicate minimal impact of diagenesis on the enamel. While further work is needed to explore preservation for settings with different taphonomic conditions, the diet-related δ66Zn values in fossil enamel from THM cave suggest an excellent long-term preservation potential, even under tropical conditions that are well known to be adverse for collagen preservation. Zinc isotopes could thus provide a new tool to assess the diet of fossil hominins and associated fauna, as well as trophic relationships in past food webs.</description><subject>Biological anthropology</subject><subject>Biological Sciences</subject><subject>Collagen</subject><subject>Dental enamel</subject><subject>Dentin</subject><subject>Diagenesis</subject><subject>Diet</subject><subject>Earth Sciences</subject><subject>Enamel</subject><subject>Food chains</subject><subject>Food webs</subject><subject>Fossils</subject><subject>Humanities and Social Sciences</subject><subject>Isotope ratios</subject><subject>Isotopes</subject><subject>Mammals</subject><subject>Nitrogen isotopes</subject><subject>Omnivores</subject><subject>Paleontology</subject><subject>Pleistocene</subject><subject>Preservation</subject><subject>Sciences of the Universe</subject><subject>Taphonomy</subject><subject>Teeth</subject><subject>Trace elements</subject><subject>Trophic 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Anne-Marie</au><au>Jochum, KlausPeter</au><au>Dufour, Elise</au><au>Duringer, Philippe</au><au>Ponche, Jean-Luc</au><au>Joannes-Boyau, Renaud</au><au>Boesch, Quentin</au><au>Antoine, Pierre-Olivier</au><au>Hullot, Manon</au><au>Weis, Ulrike</au><au>Schulz-Kornas, Ellen</au><au>Trost, Manuel</au><au>Fiorillo, Denis</au><au>Demeter, Fabrice</au><au>Patole-Edoumba, Elise</au><au>Shackelford, Laura L.</au><au>Dunn, Tyler E.</au><au>Zachwieja, Alexandra</au><au>Duangthongchit, Somoh</au><au>Sayavonkhamdy, Thongsa</au><au>Sichanthongtip, Phonephanh</au><au>Sihanam, Daovee</au><au>Souksavatdy, Viengkeo</au><au>Hublin, Jean-Jacques</au><au>Tütken, Thomas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Zinc isotopes in Late Pleistocene fossil teeth from a Southeast Asian cave setting preserve paleodietary information</atitle><jtitle>Proceedings of the National Academy of Sciences - PNAS</jtitle><addtitle>Proc Natl Acad Sci U S A</addtitle><date>2020-03-03</date><risdate>2020</risdate><volume>117</volume><issue>9</issue><spage>4675</spage><epage>4681</epage><pages>4675-4681</pages><issn>0027-8424</issn><eissn>1091-6490</eissn><abstract>Stable carbon and nitrogen isotope ratios of collagen from bone and dentin have frequently been used for dietary reconstruction, but this method is limited by protein preservation. Isotopes of the trace element zinc (Zn) in bioapatite constitute a promising proxy to infer dietary information from extant and extinct vertebrates. The 66Zn/64Zn ratio (expressed as δ66Zn value) shows an enrichment of the heavy isotope in mammals along each trophic step. However, preservation of diet-related δ66Zn values in fossil teeth has not been assessed yet. Here, we analyzed enamel of fossil teeth from the Late Pleistocene (38.4–13.5 ka) mammalian assemblage of the Tam Hay Marklot (THM) cave in northeastern Laos, to reconstruct the food web and assess the preservation of original δ66Zn values. Distinct enamel δ66Zn values of the fossil taxa (δ66Zncarnivore < δ66Znomnivore < δ66Znherbivore) according to their expected feeding habits were observed, with a trophic carnivore-herbivore spacing of +0.60‰ and omnivores having intermediate values. Zn and trace element concentration profiles similar to those of modern teeth also indicate minimal impact of diagenesis on the enamel. While further work is needed to explore preservation for settings with different taphonomic conditions, the diet-related δ66Zn values in fossil enamel from THM cave suggest an excellent long-term preservation potential, even under tropical conditions that are well known to be adverse for collagen preservation. Zinc isotopes could thus provide a new tool to assess the diet of fossil hominins and associated fauna, as well as trophic relationships in past food webs.</abstract><cop>United States</cop><pub>National Academy of Sciences</pub><pmid>32071235</pmid><doi>10.1073/pnas.1911744117</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-4931-0371</orcidid><orcidid>https://orcid.org/0000-0001-9122-1818</orcidid><orcidid>https://orcid.org/0000-0002-0452-486X</orcidid><orcidid>https://orcid.org/0000-0001-8538-1903</orcidid><orcidid>https://orcid.org/0000-0002-1288-5534</orcidid><orcidid>https://orcid.org/0000-0003-4481-8974</orcidid><orcidid>https://orcid.org/0000-0003-3276-071X</orcidid><orcidid>https://orcid.org/0000-0001-8865-7055</orcidid><orcidid>https://orcid.org/0000-0002-7196-5673</orcidid><orcidid>https://orcid.org/0000-0003-1657-8256</orcidid><orcidid>https://orcid.org/0000-0001-6213-5726</orcidid><orcidid>https://orcid.org/0000-0003-2820-5035</orcidid><orcidid>https://orcid.org/0000-0003-4147-9778</orcidid><orcidid>https://orcid.org/0000-0002-0934-2360</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0027-8424 |
| ispartof | Proceedings of the National Academy of Sciences - PNAS, 2020-03, Vol.117 (9), p.4675-4681 |
| issn | 0027-8424 1091-6490 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7060694 |
| source | PubMed Central Free; JSTOR Archive Collection A-Z Listing; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Biological anthropology Biological Sciences Collagen Dental enamel Dentin Diagenesis Diet Earth Sciences Enamel Food chains Food webs Fossils Humanities and Social Sciences Isotope ratios Isotopes Mammals Nitrogen isotopes Omnivores Paleontology Pleistocene Preservation Sciences of the Universe Taphonomy Teeth Trace elements Trophic relationships Vertebrates Zinc isotopes |
| title | Zinc isotopes in Late Pleistocene fossil teeth from a Southeast Asian cave setting preserve paleodietary information |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T07%3A37%3A36IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Zinc%20isotopes%20in%20Late%20Pleistocene%20fossil%20teeth%20from%20a%20Southeast%20Asian%20cave%20setting%20preserve%20paleodietary%20information&rft.jtitle=Proceedings%20of%20the%20National%20Academy%20of%20Sciences%20-%20PNAS&rft.au=Bourgon,%20Nicolas&rft.date=2020-03-03&rft.volume=117&rft.issue=9&rft.spage=4675&rft.epage=4681&rft.pages=4675-4681&rft.issn=0027-8424&rft.eissn=1091-6490&rft_id=info:doi/10.1073/pnas.1911744117&rft_dat=%3Cjstor_pubme%3E26929161%3C/jstor_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2378993301&rft_id=info:pmid/32071235&rft_jstor_id=26929161&rfr_iscdi=true |